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S. B'ARUCH.

ANTISKIDDING DEVICE FOR VEHICLE WHEELS.

APPLICATION FILED DEC-16.1915.

Patented Aug. 22, 1-916.

of the tire so as to present a grlpping sur- SAMUEL I BARUCH, OF NEW YORK, N. Y. i

I To all whom it may concern.

. Be it known that I, SnMunnfBARrroma .citizen of the United States, and resident of New York, borough of Brooklyn, in the county of Kings and State of New York,

have invented certain new and useful Improvements in Antiskidding Dev ces for .VehicleWheels, of which the following ,is a

specification. I

This invention relates to certain improvementsin anti-skidding devices for vehicle wheels and more particularly to that type in which separate, relatively -movable' cleats are detachably securedto the tire, each cleat extending transversely of the tread portion face to prevent the tire from slipping."

-. The main .feature of my invention in-' v volvesa.novel formi'of tread portion for upon -the. ground, pavement or other supporting surface and'on'the-tire itself.

thesecleats-which will more eflectively act In its preferred-form, my invention. in-;

'volves a series of transversely extending sheet metal strips, stamped or embossed along the. tread portion so as to present a $9 of cup-shaped depressions partiallyreceiving both the supporting surface and the tread of the tire. l

Reference is'to be had tothe accompany jing drawing in iwhich similar reference characters indicate corresponding parts the several views.

In these drawings, Figure l is la side-elevation of a portionof ayvheel provided with an anti-skidding device constructed inaccordancewith my invention, Fig. 2 is an enlarged transverse section through a portion of one cleat, adjacent .parts of the sup- 40' porting surface and-=a portionof the tire, Fig. 3- is a transverse section through the tirewith the device inpIace, a portion of includes a series of transversely extending cleats each formed'ofa strip 10 'ofsheet 50.

onecleat being broken away, andFig. 4 is a perspective viewfof one section of "the .45

device.- 4 p v v H Inthe specific form illustrated in the ac-f companying drawings, my improved-a device metal bent to substantially U -shapeg; Each A strip is'of such a lengthfthatf'itimay ex e 7 side of therim' out around the tire and back to a. point approximately opposite the other from .a point approximaa ely op osite. to oneside of the rim. The strip may be made considerably longer or shorter than those Specification of Letters Patent.

. m'rrsx'rrmme nnvrca ron vnnrcnn-wnnnns.

is not material so long. as the strips extend 'downalon'g the sides sufliciently far to prevent -the device" from accidentally slipping laterally off of the tire.

Patented Aug.22, 1916. Application filed December 16, 1915. Serial No. 67,094.

\shown' in the drawin'gasthe specific length The strips may be made of various difl'erent widths although a strip made too narrow is liable to cut into the tire and a strip made too wide will not properly-fit the tire. Any suitable mean between these extremes is satisfactory. The edges of the strips are rounded or may even be curved outward slightly'fs'oas not to cut into .-the rubber.

Each strip is connected to the adjacent strips at both. ends by a series oflinks, reason of the fact that they are'closer to the hub-than is the periphery of the tire,

'eflectively hold the strips in position. These links may be formed in various diflerent ways .butan extremely simple and satisfactory 'form is that illustrated.

I have shown'each link in the form of av a heavy wire or rod-11 bent at each end to form a ring or hook 12 engaging with an aperture in the corner of the strip. Each strip is connected to the ends of the adjacent which, by I strip by two of these, links which come on opposite-sides of the rim or tire and the two Series oflinks, together with the extremities of the links, form t one metal retainers. 1

wo substantially pon 1 Tofacilitate theattachment for detachment of the .device to a tire, certain of the links may be'so constructed as to be readily disengaged from the adjacent strip or any suitable form of fastener may 'be employed. Preferably there are one or more turnbuckles 13 employed for tightening the device and accommodating for ya'riations inthe size of the tire and each turnbuckle may have-a hook 14 at one end to facilitatethe device.

As the most important feature of my invention, I-provide the'tread portion ofeach r strip .-with one or more cup-shaped irregu-.

i larities serving- ;as grippingfportions. As

opening up and removal of the shown," acircular' portlon of the metal is jstampod outwardly, the center of this being displaced to a lesser degree than the pe-' ripheral portion. -vThus, there-is formed an .annular ridge 15 encircling a-disk 16' which latter is normally spaced from the surface of the tire as it lies outbeyondthe normal plane of the adjacent portion of the'strip- 10. Thus, the outer surface of the strip I 85 tively 45 is'sufliciently thick to resist or presents a series of cup-shaped depressions encircled by inner-surface also presents a series of cupshaped depressions. 5 When the device is tightly the tire and when one of the strips comes beneath thetire during the rotation of the wheel, the rubber or other composition of the V tire 'can'enter into the cup-shaped depreslesions of the inner surface of the strip and "the ground, pavement or other supporting surface may enter into the cup-shaped deus, thestrip is prevented from slipping in regard to the ground and the tire is prerented from slipping within the strip. The suction of. these shallow cups is found to be very effective and at the same time they .do not act to cut or injure either thetire or the road-bed. I

The annular ridges 15 serve to protect the body portion of the strip to a certain extent against wear and thusthe strips, although formed of metal sufliciently thin to be flexible, do not readily become worn out. 1 Even f though the metal be worn through along "the annular ridges so that the center por ,-"tions or disks 16 drop out, yet this does not prevent the device from acting effectively to a0 prevent skidding or slipping. Under such a condition, the road-bed and tire surface could both slightly enter the aperture in the street and relative, lateral or skidding motion would be prevented orat least effecresisted.

V I have illustrated each strip as being provided with four of these double or compound, suction cups or depressions but this particular number is not an essential as a 40 greater or'lesser number might be employed.

vIn fact, I might, under some circumstances, use only one and make itconsiderably larger m diameter and depth than that ary tendenshown. The material formininthese strips the annular ridges 15, and the.

clamped to ressions in the outer surface of the strip.

cies to bend to any appreciable extent when the device is removed from the tire, but is sufliciently flexible to accommodate itself to the shape of the tire and flatten out with the portion of the tire supporting the load as thewheel rotates. The material is preferably elastic so as to normally have a predetermined form although I might, under some conditions, employ annealed metal. The strips are shown of uniform thickness although in practice I may make the tread portion materially thicker than the side por tions and may make the tread portion of a different character and strength of material and welded to the flat terminal portions lying at the sides of the tire. In fact these terminal portions might be of other material than metal such for instance as leather, canvas, or the like.

Having thus. described my invention, what I claim as new and desire to secure by Letters Patent is: Y t l 1. An antikidding device for vehicle wheels including a plurality of substantially" U-shaped sheet metal strips, each receiving the tire, each of said strips having the tread 'portion thereof deformed to present outwardly andinwardly facing cup-shaped depresslons.

2. An anti-skidding device for vehicle wheels, including a plurality of substantially U-shaped sheet metal strips each receiving the tire and each having the tread portion thereof deformed to present an outwardly extending annular projection, the portion of the strip encircled by said projection being displaced outwardly in respect to the adjacent body portion of the strip.

Signed at New York, in the county of New York and State of New York, this 15th day of December, A. D'. 1915.

I I SAMUEL BARUGH.

Witness: 1 i r Fmanncn Imvnm. 

